id:A046920 - OEIS Search Results

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Number of ways to express n as p+2a^2; p = 1 or prime, a >= 0.

+0
4

1, 1, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 3, 0, 2, 0, 1, 0, 4, 1, 3, 0, 2, 0, 3, 0, 1, 0, 2, 0, 4, 0, 2, 1, 2, 0, 4, 0, 3, 0, 2, 0, 3, 0, 3, 0, 2, 0, 4, 0, 3, 1, 2, 0, 5, 0, 1, 0, 2, 0, 6, 0, 3, 0, 1, 0, 3, 0, 4, 0, 2, 0, 5, 1, 4, 0, 2, 0, 6, 0, 3, 0, 2, 0, 4, 0, 2, 0, 3, 0, 6, 0, 2, 0, 1, 0, 4, 0, 3 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000` `L. Hodges, A lesser-known Goldbach conjecture, Math. Mag., 66 (1993), 45-47.` `Index entries for sequences related to Goldbach conjecture`
	CROSSREFS	`Cf. A042978, A046921, A046922, A046923, A060003, A143539` `Sequence in context: A053838 A117167 A117169 this_sequence A107599 A156836 A079483` `Adjacent sequences: A046917 A046918 A046919 this_sequence A046921 A046922 A046923`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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